Sujan, S., Bashar, M., Rahaman, M., Haque, M., Miah, M., Jamal, M. and Banik, S. (2011) “Optimization of Aeration Technique for the Reduction of Impurities (Corrosive Gases) from Biogas”, Bangladesh Journal of Scientific and Industrial Research, 46(3), pp. 339–342. doi: 10.3329/bjsir.v46i3.9040.